<?php
/*
 * Copyright (c) 2013 Eugene Kuzmenko
 *
 * Permission  is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in  the Software without restriction, including without limitation the rights
 * to  use,  copy,  modify,  merge, publish, distribute, sublicense, and/or sell
 * copies  of  the  Software,  and  to  permit  persons  to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The  above  copyright  notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE  SOFTWARE  IS  PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED,  INCLUDING  BUT  NOT  LIMITED  TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS  FOR  A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS  OR  COPYRIGHT  HOLDERS  BE  LIABLE  FOR  ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 *
 * For more information, see <http://www.aljey.com>.
 */

namespace Al\Style\Lib\Menu;

use Al\Core\Lib\ParameterHolder;

/**
 * Represents an html menu.
 *
 * @author Eugene Kuzmenko <mail@aljey.com>
 */
class Menu extends ParameterHolder {

  /**
   * @var string A css class.
   */
  public $class = 'nav navbar-nav';

  /**
   * @param array $items [optional]
   */
  public function __construct($items = null) {
    if (!$items) $items = array();
    if (!is_array($items)) $items = array($items);
    ksort($items);
    $data = array();
    foreach ($items as $item) {
      $data[] = '-' === $item ? new Separator : new Link($item);
    }
    parent::__construct($data);
  }

  /**
   * Checks if the menu is active (any of its items are active).
   *
   * @return bool
   */
  public function isActive() {
    foreach ($this as $item) {
      if ($item->isActive()) return true;
    }
    return false;
  }

  /**
   * @return string
   */
  public function __toString() {
    $isNav = $this->class === 'nav navbar-nav';
    return "<ul class=\"$this->class\">" . array_reduce($this->data,
      function ($carry, $item) use ($isNav) {
        /** @var Item $item */
        $item->isNav = $isNav;
        return $carry . $item;
      }, '') . '</ul>';
  }

} 